以高效的DOPO基阻燃剂修改过的环氧的阻燃剂和机械性能
Pengyu Li1, Jihui Wang1, Changzeng Wang1
1School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
Polymers
|March 13, 2024
概括
这项研究为环氧树脂 (EP) 引入了一种新型阻燃剂 (BDD),在低含量下显著提高耐火性. 这种方法最大限度地减少了机械性质的减少,为增强材料安全提供了一个有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 阻燃性是指阻燃性是指阻燃性.
背景情况:
- 在无素阻燃环氧树脂 (EP) 中含有过多的会对机械性能产生负面影响.
- 开发高效的阻燃剂,对材料性能产生最小的影响,对于更广泛的应用至关重要.
研究的目的:
- 合成一种新型,高效的阻燃剂 (BDD) 用于环氧树脂.
- 为了在优化的低含量下实现增强的耐火性.
- 评估BDD对环氧树脂机械性能的影响.
主要方法:
- 一种新型阻燃剂 (BDD) 的合成.
- 使用FTIR,1H NMR,31P NMR和XPS进行BDD的结构性表征.
- 在不同度下将BDD纳入环氧树脂.
- 使用限制氧气指数 (LOI),UL 94和圆热量计来评估阻燃性.
- 对改性环氧树脂的机械性能进行评估.
主要成果:
- BDD得到了有效的合成和表征.
- 使用0.25%重量%的环氧树脂获得了33.4%的LOI和V-0 UL 94等级.
- 峰值热释放率 (P-HRR) 和总热释放率 (THR) 显著降低.
- 添加BDD对环氧树脂的机械性能产生了最小的影响.
结论:
- 新型阻燃剂BDD有效地提高了低含量的环氧树脂的耐火性.
- 从基于酸盐的阻燃剂中去除基团是提高效率的可行策略.
- 这项研究为开发高效,机械健全的阻燃环氧树脂提供了一种新的方法.
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